JP5271478B2 - Venetian blind - Google Patents

Abstract

The window covering has a head rail with a tilting mechanism for raising and lowering an adjustment unit (822), and a cord for connecting the head rail and a bottom rail. A set of panels (801) are restrainedly positioned at a spaced row interval. The panels have a longitudinal portion and another opposed longitudinal portion, which are in an overlapping relationship, for forming a curved distal end portion.

Description

  The present invention is a continuation of US application 10 / 413,200 filed on April 14, 2003, currently issued as US Pat. No. 6,792,996, US application filed August 30, 2004. This is a continuation-in-part of application 10 / 930,021. The present invention is also a continuation-in-part of US application 10 / 427,829 filed May 1, 2003. Each of these patents and applications is hereby incorporated by reference.

  The present invention relates to an improved window cover. In particular, the present invention relates to an improved window cover of the Venetian blind type that includes a plurality of vanes or panels and is arranged such that one side of the sunshade faces the interior of the room.

  Venetian blinds are widely welcomed as window covers because they provide functions such as shielding sunlight, adjusting room brightness, decorating rooms, and providing privacy. Conventional Venetian blinds generally include a head rail, a bottom rail, a plurality of vanes, a lifting mechanism that includes a plurality of lifting strings, and a tilt or adjustment mechanism that includes a plurality of ladder strings. The pull-up member generally includes a string that is provided symmetrically laterally to the blind to balance the bottom rail and vane so that they are raised and lowered synchronously. By pulling the lifting string, the bottom rail and the vane are raised and lowered relative to the head rail as desired.

  Venetian blinds further provide the ability to allow light to enter the room without tilting the entire blind by tilting the slats. The blades can be tilted up or down by operating a tilting mechanism that adjusts the ladder string. In this regard, each ladder generally includes a front surface and a back surface and a vertical extension member or string connected to each other by a plurality of crossed lateral strings spaced vertically. Supported on each crossed horizontal cord between the vertically extending members of the ladder are vanes such as narrow aluminum strips or wood boards. The head rail generally includes a tilt or adjustment mechanism for moving the ladder so that the vertical extension members of each ladder move in opposite vertical directions to pivot each vane about its long axis. . By tilting the vanes described above to different tilt angles, the amount and direction of light projected into the room through the Venetian blind can be controlled and adjusted.

  Another form of window cover is commonly referred to as a roman shade. Unlike Venetian blinds, which are formed from slats and have a neat and uniform aesthetic contour, the Roman shade gives a softer appearance that hangs down like a waterfall. The present invention provides a window cover having a curved panel with a softer appearance that opens and closes in a manner similar to the Venetian blind of US application 10 / 413,200.

(Disclosure of the Invention)
An improved Venetian blind window cover is provided that has a softer and more aesthetic appearance. The window cover can be moved from a closed position to an open position, and can operate a surface, a head rail having a tilt mechanism for raising and lowering at least one adjustment member, and a head rail and a bottom rail. A fixing member connected in a state, and a plurality of panels between the head rail and the bottom rail, wherein each panel is arranged in a state of being constrained by the fixing member and the adjustment member with a certain row interval. ing. Each of the plurality of panels includes a first longitudinal portion and an opposing second longitudinal portion. The panel is folded onto itself so that the first and second longitudinal portions overlap. The panel, when folded, forms a distal end that extends from the adjustment member and has a curved appearance. Each of the plurality of panels is preferably formed from a flexible material such as a fabric, a film, or a laminate. Each of the plurality of panels is biased toward the distal end in a pivotable state. The tilt mechanism is suitable for opening and closing the plurality of panels by raising and lowering the adjustment member independently of the fixing member.

  In one embodiment, when the window cover is in the closed position, the distal end of each panel is less than the row spacing so that the securing member and adjustment member are hidden from the surface by the distal end of the adjacent panel. Is also getting longer. In other words, one row of panels will partially overlap adjacent rows so that there is no visible gap between the rows. Alternatively, the distal end of each panel may be shorter than the row spacing so that the locking member and adjustment member are partially visible when the window cover is in the closed position.

  The fixing member and the adjustment member are preferably strings. More preferably, each string includes a plurality of rings spaced apart. Thus, the first and second longitudinal portions of each panel are fixed to the string so that they can be removed by an anchor member that is guided through one of the spaced-apart rings and disposed in the longitudinal portion.

  A tilt mechanism is also included in the head rail to raise and lower at least the adjustment member. The tilt mechanism may also raise and lower the fixation member in some embodiments. The inclined member adjusts the positions of the plurality of panels by raising and lowering at least the adjusting member. At least the fixing member connects the head rail and the bottom rail with a plurality of panels arranged therebetween. Each of the plurality of panels is disposed along the fixing member at a row interval in a restrained state. The row spacing is the distance between adjacent rows, measured along the fixing member, and is preferably uniform throughout the window cover.

  Many collaborative forces are applied to each of the plurality of panels. Gravity closing force is applied near the center of gravity of each panel. This gravitational closing force moves the front or distal end of the panel downward toward a closed position. An offset pulling force that tends to tilt the panel upwards and open is applied to each panel by the adjustment mechanism. Additional balancing force is applied to each panel by the securing members. This balancing force is preferably greater than the pulling force.

  The closing force due to gravity is a constant downward force, and when the positions of the plurality of panels are in a stationary state, the pulling force and the axis are offset and in equilibrium. When the adjustment member is stretched by the tilting mechanism in the head rail, the pulling force decreases, the gravity surpasses the pulling force, and the panel is tilted to the closed position. In contrast, when the adjustment member is retracted by a tilting mechanism in the head rail, the pulling force is greater than the closing force due to gravity, so that the panel tilts upward, i.e., opens.

  However, because the balance force is greater than either gravity or pulling force, the panel pivots around a longitudinal region that is closer to the base than the front or distal end. When only the adjustment member is moved up and down, the balance force is sufficiently large. Therefore, the longitudinal region around which the panel pivots is the place where the fixing member is constrained and installed on the panel, and the longitudinal direction. It is preferred that the region be located in the vicinity of where it extends. This swivel region remains substantially stationary relative to the head rail in the vertical direction as the tilt mechanism raises and lowers the adjustment member. Providing sufficient balance can be achieved in several ways. For example, the bottom rail to which the fixing member is connected may have a weight sufficient to overcome the pulling force applied to the panel. Instead, each panel includes a strip that is weighted to the proximal end, which moves the panel's center of gravity closer to the longitudinal region, reducing the force applied to the center of gravity.

  As described in some embodiments, the securing member may also be raised and lowered by a tilting mechanism. In particular, the tilt mechanism moves the fixing member and the adjustment member up and down in the opposite vertical directions and pivots each panel around a longitudinal region closer to the base than the front end, that is, the distal end.

  The invention disclosed herein can take many different forms of embodiments. Shown in the drawings and described in detail below are preferred embodiments of the invention. However, it should be understood that this disclosure is illustrative of the principles of the invention and is not intended to limit the invention to the illustrated embodiments.

  A preferred embodiment of the present invention is shown in FIG. Window shade 100 includes a head rail 102, a bottom rail 104, and a plurality of blind vanes 106. Further, a tilt operating rod 108 is provided for operating a tilt mechanism (not shown) in the head rail 102 to open or close the blind vane plate 106. A raising string 110 extending between the head rail 102 and the bottom rail 104 is for raising the entire shade 100. The window shade 100 has an appearance without a string or other parts connecting the plurality of blades 106 on the front side (appearance) 112, otherwise the aesthetic appearance of the window cover will be impaired.

  Although not shown in detail in the figure, the tilting mechanism may be any device that raises and lowers the string in a controllable manner, such as is normally found on a Venetian blind. For example, in an embodiment using an operating rod such as the operating rod 108 in FIG. 1, the operating rod is a winding frame (spool) in which the string goes up when the string is wound and the string goes down when the string is rewound. Only the worm gear for rotating the motor may be included. Alternatively, the tilting mechanism may be a strap stop so that the user simply pulls the adjustment strap and tilts the blind slats to the desired position and then the strap is secured in place. Such strapping is often found in assembly parts for raising the entire shade. Also other mechanisms for raising and lowering the string in a controllable manner as known in the art may be used.

  In the closed position as shown in FIG. 1, the window cover 100 provides a uniform and continuous appearance that provides both privacy and light shielding. If the entire shade is not raised, and therefore it is desired to allow light to enter the room while maintaining some privacy, the user can rotate the tilt control bar 108. When the tilt operation rod 108 is rotated and the adjustment member 122 (FIG. 3) is raised, the respective angles of the plurality of blades 106 are adjusted, and the gap 114 of the window shade 100 is opened as shown in FIG. Special arrangements for each of the plurality of vanes are described in more detail below.

  In order to clarify the arrangement of the plurality of blades of the window cover 100, an embodiment relating to the arrangement of the blades 116 and 118 will be described with reference to FIG. In this embodiment, the fixing member 120 and the adjustment member 122 penetrate and are fixed to the vanes 116 and 118, respectively. The blades 116 and 118 are fixed to the fixing member 120 and the adjusting member 122 so as not to move by using an adhesive, ultrasonic welding, braiding, tying, or the like. As will be described in more detail below, the securing member 120 and the adjustment member 122 are plastic strips (strips, strips) that extend longitudinally along the blind vane and to which the fixation member 120 and the adjustment member 122 are secured. ) And is installed on the blind slats in a restrained state.

  In this embodiment, the fixing member 120 and the adjustment member 122 are shown as passing through the vanes 116 and 118. However, it is expected that the fixing member and the adjusting member are a series of strings, and each string may connect two adjacent blades.

  The vanes 116 and 118 define holes 124 and 126 through which the raised string 110 passes. Although the strings 110, 120, and 122 are shown to be coplanar, this is not a requirement. One of the relative positions of the fixing member 120 and the adjusting member 122 is located on the distal side with respect to the other. As shown in the figure, the adjustment member 122 is located on the distal side with respect to the fixing member 120, but the adjustment member 122 and the fixing member 120 are located on the distal side with respect to the adjustment member 122. The position can be reversed. In this alternative embodiment, the blind slats are opened by lowering the adjustment member and closed by raising the adjustment member.

  The column spacing is indicated by Y, and the center of gravity of the blade plate 116 is indicated by CG. The width of the front or distal end 128 of the vane 116 is indicated by an X extending from the adjustment member 122. Although only one pair of strings, i.e., the fixing member 120, the adjusting member 122, and the raising string 110 are shown in FIG. 3, as shown in FIG. It is preferable that the window shades are installed equidistant from the opposite side surfaces of the window shade. An end portion of the blade plate 116 facing the front end portion 128 is a rear end portion 129 to which the fixing member 120 and the adjustment member 122 are fixed.

  In operation, various forces are applied to the blind slats. As an example, the blind blade plate 116 will be described. Gravity effectively applied to the center of gravity CG is indicated by a force arrow 130. The pulling force indicated by the force arrow 132 is also applied to the blind vane plate 116 by the adjustment member 122 in the region where the blind vane plate 116 is attached to the adjustment member 122. The balancing force shown as the force arrow 136 is applied to the blind blade 116 by the fixing member 120 in the region where the blind blade 116 is attached to the fixing member 120. When it is desired to adjust the angle of the blind slats, it is preferable to operate the tilt mechanism with the tilt operating rod 108 (FIG. 1). Rotating the tilt control bar causes the tilt mechanism in the head rail to stretch or retract the adjustment member 122 to adjust the angle of the blind vane. Extending adjustment member 122 reduces force 132 and gravity 130 moves blind vane 116 downward, while retracting adjustment member 122 increases force 132 and overcomes gravity 130. The distal end 128 is raised and the blind vane 116 is moved upward. As stated, the balance force 136 is greater than the pulling force 132 even when the adjustment member 122 is retracted, so the location where the fixing member 120 is attached to the vane 116 and the longitudinal region extends therefrom is Relative vertical stability relative to the head rail is maintained throughout the adjustment of the blind vane angle.

  The width of the front or distal end 128 indicated by X is greater than the row spacing distance indicated by Y. Accordingly, when the adjustment member 122 is extended so that the front end portion or the distal end portion 128 of the blind vane plate 116 is lowered and contacts the adjacent vane plate 118, the hole 126, the adjustment member 122, the fixing member 120, and the like. Is concealed from the surface of the window cover by the front or distal end 128 when viewed from one direction.

  An alternative embodiment of an improved window cover is shown in FIG. Again, reference is made to a pair of blind blades 216 and 218 as representative examples of the plurality of blind blades in the window cover. This embodiment is the same as the above-described embodiment except that a plate material is prepared instead of the string used as the fixing member 220. Further, an adjustment member 222 and a raising string 210 are provided. The fixing member 220 is a panel extending over the entire window cover, and may be made of a translucent material. With such an arrangement, the blind slats can be tilted to allow light to enter the room, but still a high degree of privacy can be maintained. If desired, the panel may be opaque, transparent, or patterned. It is preferable that the pair of strings 222 and 210, that is, the adjusting member 222 and the raised string 210 are arranged at an equal distance from both ends of the window cover.

  The overall operation of the embodiment shown in FIG. 4 is the same as that described for the embodiment shown in FIG. When the adjustment member 222 is raised and lowered, the blind blades 216 and 218 are opened and closed, respectively. Also in this case, the rear end portion 240 of the adjacent vane plate 218, which is installed with the adjusting member 222 and the fixing member 220 constrained in the vicinity thereof, is a blind vane plate 216 when the window cover is in the closed position. Since the front end portion 228 partially overlaps the rear end portion 240 of the adjacent blade plate 218, it is hidden by the front end portion 228 of the blind blade plate 216.

  Another embodiment of an improved window cover is shown in FIG. To clarify the configuration of each of the plurality of vanes, the arrangement of vanes 316 and 318 is given again. In this embodiment, the fixing member 320 and the adjustment member 322 pass through the holes 321 and 323, respectively. Unlike the embodiment shown in FIG. 3, the fixing member 320 and the adjustment member 322 are not fixed so as not to move to the blind vanes 316 and 318. Instead, referring to the slats 316, the fixing member 320 and the adjustment member 322 are arranged in a restrained state by restricting their movement by the ladder-like horizontal cord 325, and the ladder-like horizontal cord is It is composed of a knot (string) or string that is fixed to the adjusting member 322 below the blade plate 316 and fixed to the fixing member 320 above the blade plate 316. The ladder-like horizontal string 325 further penetrates the hole 324 through which the raised string 310 passes. The ladder-like horizontal string 325 restricts upward movement along the fixing member 320 of the blind blade 316 and restricts downward movement along the adjustment member 322. Similar to the embodiment shown in FIG. 3, a pair of laces including a securing member 320, an adjustment member 322, a raised tie 310, and a ladder-like horizontal 325 is included, and equal distance from opposite sides of the window cover It is preferable that each is placed.

  Up to this point, in each of the provided embodiments, the fixing member is kept stationary relative to the head rail while the adjustment member is raised and lowered. Alternative embodiments may be used in which both the fixing member and the adjustment member are raised and lowered. In particular, when the adjustment member 322 is raised, the fixing member 320 is lowered, and similarly, when the adjustment member 322 is lowered, the fixing member 320 is raised. The tilting mechanism in this embodiment may be any mechanism as long as one of the strings can be lowered and the other can be lifted at the same time. For example, a tilting mechanism for raising and lowering the front and rear parts of a ladder-like assembly as found in standard Venetian blinds is suitable. As in the previous embodiment, when the window shade is in the closed position, the string or ladder will not be visible from the surface, but it will be adjacent to the front or distal end of the vane, such as the front or distal end 328. This is because it overlaps with the matching lower slats.

  FIG. 6 shows still another method of installing the blade plate in a state of being relatively restrained with respect to the fixing member and the adjustment member. The fixing member 420 and the adjustment member 422 pass through the holes 423 and 424, respectively. In order to install the blades 416 and 418 in a state of being restrained relative to the fixing member 420 and the adjusting member 422, the stop (stop) 419 and the support (rest) 421 move to the fixing member 420 and the adjusting member 422, respectively. It is fixed so that there is no. The stop 419 is shaped so that the portion close to the blade 416 is larger than the hole 423. The support 421 is similarly shaped to include a portion larger than the hole 424. Accordingly, the stop 419 restricts upward movement of the blind vane 416 along the fixing member 420, and the support 421 restricts downward movement along the adjustment member 422. The opening and closing of the window cover by inclining the blades is as described above in the previous embodiment.

As described above, the fixing member and the adjusting member can be installed on the blind blade plate in a restrained state by various methods. Shown in FIGS. 7 and 8 is one preferred embodiment utilizing plastic strips. The blind vane 650 includes a piece of material 652 that is folded over so that the opposite ends sandwich the reinforcement strip 654. The material 652 defines holes 656 and 658 that are dimensioned to pass through the fixation member 660 and the adjustment member 662, respectively. A ring (loop) 664 is formed on the fixing member 660. A rigid fixed strip 666, preferably formed of plastic, is sandwiched between opposite ends of material 652 near the proximal end of blind slat 650. The rigid fixed strip 666 intersects the hole 656 and passes through the ring 664. Thus, the fixing member is fixed to the blind blade 650. Referring to FIG. 8, a ring 670 is similarly formed on the adjustment member 662. The rigid fixed strip 668 passes through a ring 670 formed in the adjustment member 662 passing through the hole 658. The rigid fixed strip 668 is disposed below the blind blade 650. Thus, the vane plate 650 is installed in a state of being constrained by the adjustment member 662 and the plastic strip 668, because the downward movement of the vane plate 650 relative to the adjustment member 662 is caused by the strip. This is because it is limited by the piece 668. If necessary, the strip 668 may be fixed so as not to move to the blade 650 with an adhesive or the like.

  Still another method of placing the blind vane and the fixing and adjusting member in a constrained state is shown in FIGS. In this embodiment, the blind slat 750 includes a piece of material 752 that is folded so that opposing ends sandwich the reinforcement strip 754. Fixing member 760 and adjustment member 762 pass through holes 756 and 758, respectively. As in the previous embodiment, rings 764 and 770 are formed on the fixing member 760 and the adjusting member 762, respectively. The fixing member 760 and the adjustment member 762 pass through the ring and are fixed to the plastic strips 766 and 768, respectively. Alternatively, as shown in FIG. 10, the hole 772 can be formed so as to be close to but not coincident with the edge 774, in which case the securing member 776 is tied directly to the blind vane 778. In such an embodiment, a plastic fixing strip is not required, but may be included as required.

  An optional feature that can be incorporated into either embodiment is the reinforcing strip shown in FIG. In this embodiment, fixing member 520 and adjustment member 522 penetrate and are fixed to vanes 516 and 518, respectively. The vanes 516 and 518 are fixed to the fixing member 520 and the adjustment member 522 so as not to move, and define holes 524 and 526 through which the raising string 510 passes. Further included is a reinforcing strip 540, such as a thin metal strip. The reinforcing strips 540 and 541 further enhance the fixation between the fixing member 520 and the blades 516 and 518. Reinforcing strips 540 and 541 may serve the additional purpose of providing additional weight to proximal ends 542 and 544 of vanes 516 and 518. By doing so, the center of gravity of the vane moves closer to the proximal ends 542 and 544, reducing the required amount of balancing force, as provided by the weight of the bottom rail, ie, to be applied by the securing member 520. Let Although it is preferred that the reinforcing strips 540 and 541 extend the length of the vane, the strip can only extend a portion of the vane.

  In another preferred embodiment as shown in FIG. 12, traditional blind slats can be replaced with a row of folded panels such as panel 801. Each of these panels can be made from a variety of materials including, but not limited to, plastic, fabric, laminate, or paper. Each panel 801 is folded on itself, in this embodiment a first portion 802 which is the top surface portion of the folded panel and a first portion 802 which is the bottom surface portion of the folded panel in this embodiment. Two portions 803. The portion of the panel 801 that extends from the adjustment member 822 to the distal end forms a distal end 828 and has a width indicated by X. In this embodiment, the width of the distal end 828 is greater than the column spacing represented by Y.

  Although the panel 801 may be folded and folded, it is preferred that the panel 801 be softly folded with a gentle curve as shown to create an aesthetically appealing appearance as depicted. . The use of a softly folded panel 801 with a gentle curve is advantageous in that the window cover functionally acts as a Venetian blind while maintaining the attractive beauty of the roman shade. In this embodiment, the panel 801 is folded in an asymmetric fashion where the first portion 802 is wider than the second portion 803. However, it should be understood that the first portion 802 and the second portion 803 may be substantially symmetric.

  The movement of the panel is the same as the movement of the blades described in the previous embodiment. The fixing member 820 and the adjustment member 822 are fixed to the panel 801. In the embodiment shown in FIG. 12, the adjustment member 822 passes through the hole 804 of the folded panel 801. Although not shown, the tilting mechanism may be used to tilt the panel to raise and lower the adjustment member 822 in a state where it can be controlled relative to the fixing member 820. The relative positions of the first portion 802 and the second portion 803 are maintained by the weight of the panel. In other words, the gravity based on the weight of the panel, which moves the panel 801 to the closed position downward, balances the pulling force applied to the panel 801 by the fixing member 820 and the adjustment member 822.

  In this embodiment, a ring is formed between the fixing member 820 and the adjustment member 822, and the anchor member 821 passes through it, and the panel 801 is fixed to the fixing member in the same manner as described above with reference to FIGS. Removably fixed to 820 and adjustment member 822. For example, the anchor member 821 is guided through one of the spaced apart rings defined by a securing member 820, such as a ring 823. Anchor member 821 is also guided through a ring 825 formed in first portion 802. Similarly, the adjustment member 822 includes a plurality of spaced rings, such as a ring 827, through which the anchor member 829 passes. Instead, the fixing member 820 or the adjustment member 822 is attached to the folded panel 801 with a frame entitled window cover fastener module and method filed October 21, 2004, which is incorporated herein by reference. -As suggested in US patent application Ser. No. 10 / 970,428 by Lai Yu, Chin-Tian Huan, and Shun-Chi Yu et al., Fixed with fastener module, panel removal or replacement Can be further facilitated.

  FIG. 13 shows the embodiment of FIG. 12 in the closed position. As shown, when in the closed position, the distal portion 828 of the panel 810 hides the fixation member 820 and the adjustment member 822 by overlapping adjacent rows. It may be desirable to stiffen or strengthen at least a portion of the distal end 828 to prevent sagging when the panel 801 is in the open position. Stiffening of the desired part can be achieved by using many methods including, for example, the use of reinforcing strips, the use of stiffer materials, stronger weaving techniques, stiffening coatings or spraying, etc. Can be achieved.

  So far, the described embodiments have included rows that hide the operating members when the window cover is in the closed position. An alternative embodiment is described with reference to FIGS. As in the previous embodiment, the blind slats have been replaced with a row of folded panels such as panel 901. Each panel 901 is folded on itself so that the first portion 902 is folded back and overlaps the second portion 903. A distal end 928 of panel 901 extends from adjustment member 922 to the distal end. The width of the distal end 928 is preferably slightly smaller than the row spacing indicated by Y.

The adjustment member 922 passes through a hole 904 defined in the first portion 902 of the folded panel 901. As described above, the relative position of the first portion 902 and the second portion 903 is maintained by the weight of the panel, that is, gravity based on the weight of the panel that moves the panel 901 downwardly closed Countered by the pulling force applied to the panel 901 by the fixing member 920 and the adjustment member 922 passing through the hole 904 defined in the first portion 902 . A ring is formed on the fixing member 920 and the adjustment member 922. For example, the fixation member 920 defines a ring 923 and the adjustment member 922 defines a ring 927. Anchor member 921 and anchor member 929 are guided through rings 923 and 927, respectively. Since the distal end 928 is shorter than the row spacing Y, the locking member 920 and the adjustment member 922 are partially visible from the surface when in the closed position.

  The above description is illustrative and should not be construed as limiting. Still other variations within the spirit and scope of the invention will readily occur to those skilled in the art.

FIG. 1 is a front perspective view of a preferred embodiment of a closed window cover according to the present invention. FIG. 2 is a front perspective view of the window cover of FIG. 1 partially open. 3 is a cross-sectional side view of a pair of adjacent blind vanes of FIG. 1 partially open. FIG. 4 is a partial cross-sectional, side perspective view of a pair of adjacent blind vanes according to an alternative embodiment of a window cover. FIG. 5 is a cross-sectional side view of a set of adjacent blind vanes according to another alternative embodiment of a window cover. FIG. 6 is a side view of a pair of adjacent blind vanes according to yet another alternative embodiment of a window cover. FIG. 7 is an enlarged perspective view of a preferred embodiment in which the blind vane is fixed to the fixing member and the adjustment member so as not to move. FIG. 8 is an enlarged bottom view of the embodiment of FIG. FIG. 9 is an enlarged perspective view of another preferred embodiment in which the blind vane is fixed to the fixing member and the adjusting member so as not to move. FIG. 10 is an enlarged view of another alternative embodiment in which the blind slats are fixed against movement to the fixed member. FIG. 11 is a perspective view of a set of adjacent blind vanes according to a further embodiment of a window cover. FIG. 12 is a side cross-sectional view of a folded adjacent panel in an alternate embodiment of the window cover in the open position. FIG. 13 is a side view drawn in a shortened manner of the window cover of FIG. 12 in the closed position. FIG. 14 is a cross-sectional side view of a folded adjacent panel in an alternate embodiment of a window cover in an open position. 15 is a side view drawn in a shortened manner of the window cover of FIG. 14 in the closed position.

Claims (8)

A plurality of panels arranged at predetermined row intervals;
A fixing member for applying a vertical balancing force to the plurality of panels;
A venetian blind comprising an adjustment member for adjusting an angle of the plurality of panels between an open position and a closed position;
Each of the plurality of panels has a front end portion that is pivoted toward the closed position, and a rear end portion that is restrained by the fixing member and the adjustment member,
Each of the plurality of panels is folded at a curve at the front end so as to define a first portion and a second portion that overlap each other , and the first portion is wider than the second portion and is folded back The first portion of each of the plurality of panels is connected to the fixing member, and the second portion of each of the folded plurality of panels is connected to the adjustment member,
Each of the plurality of panels can be moved from the open position to the closed position by moving the adjustment member in a vertical direction, and the front end is biased toward the closed position. Venetian blinds are balanced .   When the Venetian blind is in the closed position, the front end of the front end of each of the plurality of panels, the fixing member, and the fixing member and the adjustment member are hidden by the front end of the adjacent panel. The venetian blind according to claim 1, wherein a length between a position restrained by the adjustment member is longer than or equal to the row interval.   When the Venetian blind is in the closed position, the front end of each of the plurality of panels, the fixing member, and the adjusting member so that the fixing member and the adjusting member are partially visible. The venetian blind according to claim 1, wherein a length between the position and the position constrained by the column is shorter than the row interval.   The venetian blind according to claim 1, wherein the fixing member is a string.   The venetian blind according to claim 1, wherein the balance force is larger than a pulling force applied to each of the plurality of panels by the adjustment member.   The venetian blind according to claim 1, wherein at least a part of the front end portion is stiffened. Further comprising a head rail and a bottom rail;
The head rail includes an inclination mechanism for raising and lowering the adjustment member independently of the fixing member,
The plurality of panels are disposed between the head rail and the bottom rail;
Each said first portion of said plurality of panels, Ri Ah in the upper portion of the folded panel, each said second portion of said plurality of panels, Ri Ah in the lower portion of the folded panels ,
The plurality of panels are disposed in a state of being restrained by the fixing member in the first portion, and are disposed in a state of being restrained by the adjustment member in the second portion,
Each of the plurality of panels, wherein the adjustment member Ru can move to the closed position from an open position wherein by pulling a Venetian blind according to claim 1.   The fixing member is a string, and the string includes a plurality of rings arranged at intervals, and one of the rings arranged at intervals in the first portion of each of the plurality of panels. The venetian blind according to claim 7, wherein the venetian blind is disposed in a state of being constrained to each of the plurality of panels by an anchor member guided through one of the plurality of panels.

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